explain monorepo case

content/docs/studio/rest-api.md

@@ -33,6 +33,12 @@ HTTP Method: GET
 
 If no version specified, the latest one is returned.
 
+When your model is annotated in non-root `dvc.yaml` file (typical for monorepo
+case), model name will be constructed from two parts separated by colon:
+`path/to/dvc/yaml:model_name`. For example, take a loot at this
+[model from example-get-started-experiments repo](https://studio.iterative.ai/user/aguschin/models/VtQdva13kMSPsN_N8004aQ==/pool-segmentation/v1.0.1).
+Its full name that you need to use in API is `results/train:pool-segmentation`.
+
 | header        | desc            | example value |
 | ------------- | --------------- | ------------- |
 | Authorization | Header for auth | token abc123  |